Index: include/clang/Basic/Builtins.def =================================================================== --- include/clang/Basic/Builtins.def +++ include/clang/Basic/Builtins.def @@ -786,6 +786,7 @@ LANGBUILTIN(_InterlockedCompareExchange, "NiNiD*NiNi", "n", ALL_MS_LANGUAGES) LANGBUILTIN(_InterlockedCompareExchange64, "LLiLLiD*LLiLLi", "n", ALL_MS_LANGUAGES) LANGBUILTIN(_InterlockedCompareExchangePointer, "v*v*D*v*v*", "n", ALL_MS_LANGUAGES) +LANGBUILTIN(_InterlockedCompareExchangePointer_nf, "v*v*D*v*v*", "n", ALL_MS_LANGUAGES) LANGBUILTIN(_InterlockedDecrement16, "ssD*", "n", ALL_MS_LANGUAGES) LANGBUILTIN(_InterlockedDecrement, "NiNiD*", "n", ALL_MS_LANGUAGES) LANGBUILTIN(_InterlockedExchange, "NiNiD*Ni", "n", ALL_MS_LANGUAGES) Index: lib/CodeGen/CGBuiltin.cpp =================================================================== --- lib/CodeGen/CGBuiltin.cpp +++ lib/CodeGen/CGBuiltin.cpp @@ -2999,7 +2999,8 @@ case Builtin::BI_InterlockedExchangePointer: return RValue::get( EmitMSVCBuiltinExpr(MSVCIntrin::_InterlockedExchange, E)); - case Builtin::BI_InterlockedCompareExchangePointer: { + case Builtin::BI_InterlockedCompareExchangePointer: + case Builtin::BI_InterlockedCompareExchangePointer_nf: { llvm::Type *RTy; llvm::IntegerType *IntType = IntegerType::get(getLLVMContext(), Index: test/CodeGen/ms-intrinsics.c =================================================================== --- test/CodeGen/ms-intrinsics.c +++ test/CodeGen/ms-intrinsics.c @@ -235,6 +235,21 @@ // CHECK: ret i8* %[[RESULT:[0-9]+]] // CHECK: } +void *test_InterlockedCompareExchangePointer_nf(void * volatile *Destination, + void *Exchange, void *Comparand) { + return _InterlockedCompareExchangePointer_nf(Destination, Exchange, Comparand); +} + +// CHECK: define{{.*}}i8* @test_InterlockedCompareExchangePointer_nf(i8** {{[a-z_ ]*}}%Destination, i8* {{[a-z_ ]*}}%Exchange, i8* {{[a-z_ ]*}}%Comparand){{.*}}{ +// CHECK: %[[DEST:[0-9]+]] = bitcast i8** %Destination to [[iPTR]]* +// CHECK: %[[EXCHANGE:[0-9]+]] = ptrtoint i8* %Exchange to [[iPTR]] +// CHECK: %[[COMPARAND:[0-9]+]] = ptrtoint i8* %Comparand to [[iPTR]] +// CHECK: %[[XCHG:[0-9]+]] = cmpxchg volatile [[iPTR]]* %[[DEST:[0-9]+]], [[iPTR]] %[[COMPARAND:[0-9]+]], [[iPTR]] %[[EXCHANGE:[0-9]+]] seq_cst seq_cst +// CHECK: %[[EXTRACT:[0-9]+]] = extractvalue { [[iPTR]], i1 } %[[XCHG]], 0 +// CHECK: %[[RESULT:[0-9]+]] = inttoptr [[iPTR]] %[[EXTRACT]] to i8* +// CHECK: ret i8* %[[RESULT:[0-9]+]] +// CHECK: } + char test_InterlockedExchange8(char volatile *value, char mask) { return _InterlockedExchange8(value, mask); }